C、第二次模擬考R語言輸出結果

## Warning: Removed 4 rows containing non-finite values (stat_count).

## Warning: Removed 5 rows containing non-finite values (stat_count).

## Warning: Removed 4 rows containing non-finite values (stat_count).

## Warning: Removed 6 rows containing non-finite values (stat_count).

## Warning: Removed 5 rows containing non-finite values (stat_count).

## Warning: Removed 4 rows containing non-finite values (stat_count).